USB Controlled Relay - 4-Channel

USB Controlled Relay at a Glance...

• 4 Relays Installed on a Circuit Board
• Onboard USB Interface Module
    - Plugs Directly into USB Port
    - Mounts as a Virtual COM Port
• Pro Versions
    - Limited Command Set
    - Not Expandable
• ProXR Lite Versions
    - Industry Leading Command Set
    - Not Expandable
• ProXR Versions
    - Industry Leading Command Set
    - Expandable to 256 Relays

Selecting The USB Interface

By selecting the USB interface you will be sending commands through the USB port of your computer to the board.  Boards on this page are equipped with a ZUSB communications module that adds USB communications to the board.  A command consists of a few bytes of data in numerical format usually between 2 and 6 bytes.  Once the command has been received, the controller processes the command and the relay activates.

Selecting a USB Controlled Relay

Below you will find the 4-channel USB Controlled Relays that are available.  The difference being the amperage of the relays installed and the type of relay.  Choose the controller that fits the amperage you are switching.  You will find SPDT relays in the 5, 10 and 20 amp versions and an SPST version in 30 amp.  For more information on selecting the correct relay for your application see Choosing a Proper Amperage.

Selecting a USB Controlled Relay Version

The 4-Channel boards are available with the ProXR Lite firmware.  ProXR Lite boards have the ProXR command set, the industry leading command set for controlling relays.  The ProXR Lite versions are non-expandable with 8-Channels of 8/10-Bit Analog to Digital Converters, capable of reading analog voltages from 0 to 5 Volts DC.  When you find your controller click on the picture to view full specs, watch setup videos, download software and purchase.